New Delhi, April 25 -- A 42-year-old man, out on bail for allegedly sexually assaulting his four-year-old stepdaughter, stabbed his former wife and set her on fire in east Delhi's Patparganj on Wednesday, in what police believe was a brutal act of revenge. Less than 24 hours later, he died by suicide, jumping off the 23rd floor of an under-construction building in Noida, police said....